/*
 * The MIT License
 *
 * Copyright 2014 David Rodenas Pico.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package edu.uoc.sd.fr14.exp;

import edu.uoc.sd.fr14.comp.Component;
import edu.uoc.sd.fr14.mesg.Message;
import edu.uoc.sd.fr14.mesg.TargetId;
import edu.uoc.sd.fr14.model.Logger;

import java.util.TimerTask;

/**
 *
 * @author drodenas
 */
public class ExperimentComponent extends Component{
    
    private static final Logger log = Logger.get("ExperimentComponent");
    
    private final TargetId me;
    private final Experiment experiment;
    
    public ExperimentComponent(final TargetId me, final Experiment experiment, final long tick) {
        super("experiment-"+me);
        if (me == null) throw new NullPointerException("Illegal argument: me cannot be null");
        if (experiment == null) throw new NullPointerException("Illegal argument: experiment cannot be null");
        
        this.me = me;
        this.experiment = experiment;
        
        // the timer task
        getTimer().schedule(new TimerTask() {
            @Override
            public void run() {
                tick();
            }
        }, 0, tick);
    }

    @Override
    protected void process(Message message) {
        if (!message.getTarget().equals(me)) return;

        synchronized (experiment) {
            log.debug(me, "applying message '"+message+"'");
            experiment.apply(message);
        }
    }
    
    private void tick() {
        synchronized (experiment) {
            experiment.tick();
            flushOutputQueue();
        }
    }

    @Override
    protected void deliver(Message message) {
        log.debug(me, "deliver '"+message+"'");
        super.deliver(message);
    }

    private void flushOutputQueue() {
        synchronized (experiment) {
            for (Message message : experiment.flushOutput()) {
                deliver(message);
            }
        }
    }
    
}
